<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>templateIndex</title>
</head>
<body>
<span th:text="${key}"></span>
<span th:text="${key}"></span>
</body>
</html>